四川若尔盖湿地生态持续改善 首次观测到大天鹅繁殖

Core Insights - The discovery of the breeding behavior of the national second-class protected animal, the whooper swan, in the Ruoergai Wetland marks a significant milestone in biodiversity conservation efforts in China [1][3]. Group 1: Breeding Discovery - The whooper swan's nest was found in the core area of the wetland, containing three typical eggs, measuring approximately 13 cm in length and 7 cm in width, with each egg weighing about 350 grams [3]. - This breeding site is located at approximately 33.8 degrees north latitude, breaking the traditional understanding that whooper swans breed only at latitudes of 40 degrees and above, thus setting a new record for the lowest breeding latitude of this species [3]. Group 2: Ecological Significance - The choice of the Ruoergai Wetland as a breeding ground by the whooper swan indicates a significant improvement in the ecological environment, showcasing the integrity and stability of the local ecosystem [3][5]. - The successful breeding of the whooper swan in this area serves as a strong indicator of the wetland's ecological health and the effectiveness of conservation measures implemented [5]. Group 3: Conservation Efforts - The management bureau of the protected area has initiated a special monitoring program using smart monitoring equipment to scientifically track the entire breeding process of the whooper swan [5]. - The discovery not only provides a new perspective for studying the breeding ecology and geographical distribution of the whooper swan but also highlights China's significant achievements in wetland and biodiversity conservation [5].